3results about How to "Reduce smoke emissions" patented technology

The invention discloses an ammonia gas catalytic cracker. The cracker comprises a shell and a corrugated coil pipe in the shell, a separation blind plate is arranged in the shell and is parallel to the bottom surface, and the internal space is divided into an upper half area and a lower half area; the corrugated coil pipe repeatedly penetrates through the separation blind plate; the pipe section, located above the separation blind plate, of the corrugated coil pipe is filled with an ammonia catalytic cracking catalyst, and the pipe section, located below the separation blind plate, of the corrugated coil pipe is not filled; an air inlet and an air outlet are formed in the two sides of the upper half area of the shell respectively, and a flue gas inlet and a flue gas outlet are formed in the two sides of the lower half area of the shell respectively; wherein the air inlet and the flue gas outlet are on the same side, and the air outlet and the flue gas inlet are on the same side; an inlet of the corrugated coil is connected with an ammonia pipeline, and an outlet is connected with a cracking gas pipeline. Part of ammonia gas is pre-cracked by utilizing the ammonia gas cracking catalyst, and heat is provided for cracking reaction in the corrugated coil pipe by utilizing flue gas waste heat, so that the adjustment of the combustion property of fuel gas is realized, and the possibility is provided for reducing fuel type NOx.

This invention relates to the field of sludge treatment technology and provides an integrated device for low-heat-loss sludge drying and incineration. The device includes a frame, a drying unit, an incineration unit, a sludge conveying unit, a flue gas conveying unit, and a flue gas treatment unit. The flue gas conveying unit consists of an air intake mechanism and an inlet pipe. The air intake mechanism comprises a blower body, a drive assembly, a control assembly, a hollow main shaft, an annular frame, blower blades, and an adjustment assembly. The air intake mechanism can steplessly adjust the blower body's exhaust and suction air volume, output air pressure, and operating efficiency in real time. Based on real-time changes in the moisture content, feed amount, and organic matter content of the wet sludge, it can quickly adjust the blower body's exhaust and suction air volume, precisely control the heat supply of the annular flue gas heat exchange chamber, and precisely control the flue gas volume of the incineration unit. This stabilizes the optimal combustion condition of the incineration unit under a slightly positive pressure, completely solving the problems of positive pressure flue gas leakage or negative pressure cold air infiltration in the incineration unit, and reducing the fluctuation range of the combustion temperature in the incineration unit.

An oil-rich heating furnace device circularly heated by high-temperature flue gas comprises a heating furnace body, a combustor for heating, a combustion-supporting air pipeline, a furnace top flue gas pipe arranged on the upper portion of the heating furnace body, an air preheater, a flue gas discharge chimney and an oil-rich conveying pipe arranged in a furnace cavity. The device is characterized in that the center of the furnace body is provided with a high-temperature flue gas injection guide cylinder and a rich oil delivery pipe surrounding the outer ring of the high-temperature flue gas injection guide cylinder; the burner for heating is arranged on the inner hearth wall at the lower part of the heating furnace body; the bottom of the hearth is provided with an in-furnace flue gas circulating channel which is formed by an out-furnace circulating hot air pipeline and a furnace top flue gas pipe at the upper part of the heating furnace body; an air pipeline, a hot air pipeline, a flue gas discharge chimney and an in-furnace combustor on the two sides of the air preheater form an out-furnace preheated air conveying channel capable of utilizing the flue gas discharge chimney to preheat; therefore, the closed furnace internal and external circulation heating system capable of continuously heating rich oil flowing through the conveying pipe of the in-furnace rich oil disc is formed.